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> This isn’t about JS.

That's precisely why it shouldn't be in JS.

Edit: to clarify, javascript is full of random warts that you have to know about in order to use it effectively, that's why I think a language with less such warts would be more suitable for someone that wants to try out and use the ideas book introduces with caring too much about the language.

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The most accessible runtime on the planet. To each their own. I loathe JS, but I also believe english is a crap language. English happens to be the only language I can effectively use to describe my ideas to others. :-)

> The most accessible runtime on the planet.

In what sense?

If you have a browser on a computer you have a js repl.

That's what I had assumed but wanted to double check since "accessible" is ambiguous. However, it's not all that convincing of an argument. Several languages are installed as easy as a browser is. And loading a local file, such as code included with a book, in the developer console quickly goes beyond accessible.

You don't even have to install a browser on any popular OS you can name.

JS REPL and dev tools are also far better than almost anything outside of Common Lisp.

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